Flexible varnish



Patented June 19, 1923.

NI'TED, STATES I 'CHARLES DEAN DRAPER,':OF. PORTLAND, ,QREGONL rLnxIBLn vARNIsH.

No Drawing.

,cluding pantasote, fabricoid, leather, etc.

The dressing is particularly applicable for finishing motor vehicle tops and curtains, tents, awnings, and other fabrics which must be folded in use.

The object of the invention is toprovide a surface dressing or varnish for the purpose stated which is not only stable, water and weather proof and glossy, but whlch 13 also flexible so that it will not crack or chip when the fabric to which it is applied is folded or creased.

The dressing has as its base any commercial varnish composition, that is, a composition having as its essentials a resinous matter or gum, such as rosin, 'copal, or the like, dissolved in a suitable vehicle, such as boiled linseed oil. Preferably the varnish composition employed will be of the Water or weather-proof variety, of which a: number are well known and on the market, one commercial product of this kind being that known as Valspar varnish. To such varnish composition, after the same has passed the stage where boiling is required, there is added and intimately mixed therewith, raw linseed oil. The quantity of linseed oil to be mixed with the varnish composition may be varied and the precise quantities which will be used have to do largely with the cost of manufacture and can be varied to suit conditions. Excellent results have been secured by using commercial Valspar varnish and raw linseed oil in substantially equal parts, but reasonable variations from these proportions produce no noticeable eifect in the final result.

Suitable coloring matter may be added to give the desired color to the finish. Quick drying coach colors ground in japan, or other pigment coloring ferred because they are matter, are prenot dyes and hence tem t-sees Application filed September 12, 1921. Serial in. 500,207.

do not'fadeortend to rot the fabrics, asdo the dyes used in commercial automofbiletop dressings.

In making upthe "dressing the varnish composition well known ways of preparing varnish, or commercial "water-proof varnish may be used. The raw linseed oil must not be adde d until the-preparation of the varnish passed the stage'where further necessary. After the varnish has reached such stage, and supposing that. coloring matter is desired to be added, the coloring matter should be first thoroughly boiling is mixed with a small proportion of the varinsure av nish composition in order to thorough and smooth mixture with the other ingredients. The remainder of the varnish composition and the raw linseed oil are then added and the whole mixed together by stirring, and without boiling or heating. Finally, a small portion of suitable drier, such as japan drier, is added, satisfactory results being secured by adding about one part of japan drier to 128 parts of the varnish composition and raw linseed oil combined.

The compositionabove named forms an intimate mixture which can be made up and stored without separation of the ingredients. It can be applied to the surface to be coated in the usual way of applying varnishes or the well known dressings forzautomobile tops." It is essential that the raw linseed oil be added when the mixture is composition may be prepared in any of the "complete, 'or at least; has I cold, or at least without such temperature as would materially heat the linseed oil, it being essential that the linseed oil in the final composition be in its raw state.

Automobile tops and curtains of well known fabrics when treated with the above named dressing have a finish which is glossy, perfectly smooth, stable, and absolutely flexible, no cracking or chipping of I I believe I am the first to have produced a surface dressing whichgivesa finlsh having alltheap pearance of the highest grade varnish finishes and which is absolutely flexible. T he ordinary commercial varnishes 'Will not withstand'iflexings or folding of a fabric to which they are applied Without chipping or some are claimed to be flexible.

I claim: V

1. As a new composition of matter, a

' flexible varnish-like surface dressing eona "cold state,

cracking, notwithstanding that varnish like urface dre ssin g conlinseed, oil in approximately equal proportions. ,n ,v

13.; ,As aqnew. composit on of matter, ;a flex- ,iblevarnish-like s-urface'dressing consisting 25 of a Waterproof varnishcomposition and raw l'inseed 011' n approximately equal proportions.

l. As a new OODlPOSltlOII of matter, a flexible varnish-like surface dressing consisting 30 of a boiled-oil gum varnish composition, a relatively large percentage of raw \oil and a small percentage of a drier, said cornposition being mixed whereby zsaiclflinseed Ioil remains in its raw 35 state in the kfinal composition. I

linseed In testimony whereof, I- signmy'name.

, CHARLESDEAzN-DBAIER.

iVitnessesz 7 IEDITH FRANoIs,

QR. C. TAYLOR.

in vthe cold state, 

